The router command used to copy the running configuration to NVRAM is copy running-config startup-config
. This command saves the current active configuration so that it will be retained after a reboot. You can also use the shorthand version wr
(short for "write memory") to achieve the same result.
NVRAM
This is an incomplete command. However, this indicates that the running configuration will be saved on the device to a different location.
To copy the contents of NVRAM to a TFTP server on a Cisco device, you can use the command: copy nvram tftp After executing this command, you will be prompted to enter the TFTP server's IP address and the filename for the backup. Make sure that the TFTP server is reachable and properly configured to accept the transfer.
The IOS command to copy the running configuration to NVRAM is copy running-config startup-config. This command saves the current configuration in RAM (running config) to the non-volatile memory (NVRAM), ensuring that the configuration is preserved after a reboot. You can also use the shorthand version, wr or write memory, to achieve the same result.
It is short for copy running-config starting-config. Running-config is the configuration of the router as you have modified it and which is currently operating, held in RAM (gone after a reboot), and you copy it to the starting-config which is in NVRAM and gets loaded by the router when it boots/ So essentially you're saving what you have now to the persistent storage so your router will still work after a reboot.
wr or copy running-config startup config
To save the current running configuration you can use the "copy run start" command. Any configurations that are made on a router will not be saved until you use this command and it will save the current running configuration to the local NVRAM. This configuration will then be used on next startup. To back up we can save the configuration to a remote TFTP server with use of the "copy run tftp" command. Always have a back up plan.
What is the purpose of using the copy tftp flash command on a router? to back up the current IOS image to a server to restore the IOS image from a server to back up the router configuration to a server to restore the router configuration from flash
To save the running configuration on a router, you typically use the command copy running-config startup-config in the privileged EXEC mode. This command copies the current configuration stored in RAM (running-config) to NVRAM (startup-config), ensuring that the configuration is retained after a reboot. Alternatively, you can use the shorthand command write memory. Always confirm the save by checking the startup configuration with the show startup-config command.
In NVRAM
NVRAM is an acronym for Non-Volatile Random Access Memory. NVRAM is a type of Random Access Memory (RAM) that retains its information when power is turned off. The NVRAM is a small 24 pin DIP (Dual Inline Package) integrated circuit chip and is thus able to obtain the power needed to keep it running from the CMOS battery installed in your motherboard. It keeps track of various system parameters such as serial number, Ethernet MAC (Media Access Control) address, HOSTID, date of manufacture, etc. NVRAM is therefore a type of non-volatile memory that offers random access SYED OWAIS ALI{TECHNICAL SPECALIST}
Router(config)#Copy running-config startup-config